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- W4387432899 abstract "Abstract Photocatalytic cellulose reforming usually requires harsh conditions due to its sluggish kinetics. Here, we design and fabricate a hollow structural S‐scheme heterojunction of ZnSe and oxygen vacancy enriched TiO 2 , namely h‐ZnSe/Pt@TiO 2 , with which the photocatalytic reforming of cellulose for H 2 and formic acid is realized in pure water. H 2 and formic acid productivity of 1858 and 372 μmol/gh and a steady H 2 evolution for 300 hours were achieved with α‐cellulose. Comparable photocatalytic activity can also be achieved using various cellulose sources. It is experimentally proven that the photogenerated charge transfer follows an S‐scheme mechanism, which not only promotes the charge separation but also preserves the higher reductive and oxidative abilities of the ZnSe and TiO 2 , respectively. Furthermore, the polyhydroxy species produced during cellulose degradation are favored to adsorb on the oxygen vacancy enriched TiO 2 surface, which promotes the photocatalytic reforming process and is account to the preservation of formic acid as the major solution phase product. Additionally, sequential reactions of oxidation of aldehydes and elimination of formic acid of the cellulose degradation process were revealed. This work provides a photocatalytic strategy to sustainably produce hydrogen and value‐added chemicals from biomass under the most environmentally benign condition, i.e., pure water. This article is protected by copyright. All rights reserved" @default.
- W4387432899 created "2023-10-09" @default.
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- W4387432899 date "2023-10-08" @default.
- W4387432899 modified "2023-10-10" @default.
- W4387432899 title "Rational Design of S‐Scheme Heterojunction Towards Efficient Photocatalytic Cellulose Reforming for H<sub>2</sub> and Formic Acid in Pure Water" @default.
- W4387432899 doi "https://doi.org/10.1002/adma.202307962" @default.
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- W4387432899 hasPublicationYear "2023" @default.
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